#!/usr/bin/env node

const Dog = require('./02-dog.js');
const taidi = new Dog('taidi',4),
    zangao = new Dog('zangao',5);
taidi.on('bark',onBark);
zangao.on('bark',onBark);
function onBark(){
    // console.log(this);
    console.log(`name:${this.name},energy:${this.energy}`);
}

